一种汽车ABS气动阀体测漏夹具

Abstract

本实用新型涉及一种汽车ABS气动阀体测漏夹具，包括下底板和上顶板，下底板上端中部安装有密封气缸，密封气缸上端位于活塞杆外由下往上依次套设有下套环和上套环，密封气缸的活塞杆穿过下套环和上套环并安装有压柱，压柱中部布置有一圈外缘，外缘下部设置有一圈圆锥面，压柱中部位于外缘的下方套设有O型密封圈，密封气缸上端位于下套环外套设有内腔柱，内腔柱上端位于密封气缸活塞杆的前方设置有C形凸起，下底板上端位于密封气缸的四周分别安装有后封装置、前封装置以及两个侧封装置，上顶板下端通过弹性支撑组件连接有上堵板和上堵头。本实用新型操作简便，降低人工依赖，全气动驱动+自动同步密封，操作人员仅需上下料，大幅降低人力成本。

Claims

1. A kind of automobile ABS pneumatic valve body leak detection fixture, including lower bottom plate (1) and upper top plate (2), it is characterized in that: A sealing cylinder (3) is installed at the upper center of the lower base plate (1). The upper end of the sealing cylinder (3) is fitted with a lower collar (11) and an upper collar (12) from bottom to top outside the piston rod. The outer diameter of the lower collar (11) is larger than that of the upper collar (12). The piston rod of the sealing cylinder (3) passes through the lower collar (11) and the upper collar (12) and is fitted with a pressure column (13). An outer edge (17) is arranged in the middle of the pressure column (13). A conical surface (18) is provided at the lower part of the outer edge (17). An O-ring (14) is fitted in the middle of the pressure column (13) below the outer edge (17). The lower end of the O-ring (14) passes through the upper collar (12). The sealing cylinder (3) is supported by an inner cavity column (15) located on the upper end of the lower sleeve (11). The upper end of the inner cavity column (15) is provided with a C-shaped protrusion (16) in front of the piston rod of the sealing cylinder (3). The lower bottom plate (1) is provided with a rear sealing device (7), a front sealing device (8) and two side sealing devices (4) respectively installed around the sealing cylinder (3). The upper top plate (2) is vertically installed with four elastic support components (5). The lower ends of three elastic support components (5) are connected to an upper plug plate (6). The lower end of the upper plug plate (6) is provided with a circular sealing ring (9). The lower end of the remaining elastic support component (5) is provided with an upper plug (10).

2. The leak detection fixture for automotive ABS pneumatic valve body according to claim 1, characterized in that: The lower end of the pressure column (13) is provided with an insertion hole (19), and the upper end of the piston rod of the sealing cylinder (3) is inserted into the insertion hole (19) and fixed by fasteners.

3. The automotive ABS pneumatic valve body leak detection fixture of claim 1, wherein: The elastic support assembly (5) includes a sleeve (20), a spring (22), and a movable rod (23). The sleeve (20) is fixed to the lower end of the upper end of the end plate (6). The upper end of the movable rod (23) is inserted into the sleeve (20) from bottom to top and a limit block (24) is installed. The lower end of the movable rod (23) is provided with a connecting part (21). The lower end of the connecting part (21) is connected and fixed to the upper end plate (6) or the upper end cap (10). The spring (22) is provided on the movable rod (23) between the connecting part (21) and the bottom of the sleeve (20).

4. The automotive ABS pneumatic valve body leak detection fixture of claim 1, wherein: The side sealing device (4) includes a side sealing cylinder (26), a side push plate (27) and a side sealing plate (28). The lower base plate (1) is equipped with a horizontally arranged side sealing cylinder (26). The piston rod of the side sealing cylinder (26) is equipped with a side push plate (27). The side push plate (27) is equipped with a side sealing plate (28) on the side of the side push plate (27) near the sealing cylinder (3). A number of side sealing plugs (29) are provided on the end face of the side sealing plate (28).

5. The automotive ABS pneumatic valve body leak detection fixture of claim 1, wherein: The rear sealing device (7) includes a rear sealing cylinder (30), a rear push plate (32), and a rear sealing plug (34). The lower base plate (1) is equipped with a longitudinally arranged rear sealing cylinder (30). The piston rod of the rear sealing cylinder (30) is equipped with a rear push plate (32). An integrated bracket (33) is installed at the front end of the rear push plate (32). Several rear sealing plugs (34) are elastically arranged on the front end surface of the integrated bracket (33).

6. The automotive ABS pneumatic valve body leak detection fixture of claim 5, wherein: An active space (36) is provided between the integrated bracket (33) and the rear push plate (32). A connecting rod (38) is axially provided at the rear end of the rear sealing head (34). One end of the connecting rod (38) passes through the integrated bracket (33) and is screwed with a limit nut (39). The limit nut (39) is located in the active space (36). A spring (35) is sleeved on the connecting rod (38) between the rear sealing head (34) and the integrated bracket (33).

7. The automotive ABS pneumatic valve body leak detection fixture of claim 1, wherein: The front sealing device (8) includes a cylinder integrated seat (40), a front sealing cylinder (41) and a front sealing plug (42). The cylinder integrated seat (40) is fixedly installed on the lower base plate (1). Multiple longitudinally arranged front sealing cylinders (41) are installed on the cylinder integrated seat (40). The piston rod of the front sealing cylinder (41) passes through the cylinder integrated seat (40) and is fitted with a front sealing plug (42).

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